CN114919343A - Tire temperature monitoring method and device and storage medium - Google Patents
Tire temperature monitoring method and device and storage medium Download PDFInfo
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- CN114919343A CN114919343A CN202210318834.1A CN202210318834A CN114919343A CN 114919343 A CN114919343 A CN 114919343A CN 202210318834 A CN202210318834 A CN 202210318834A CN 114919343 A CN114919343 A CN 114919343A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/20—Devices for measuring or signalling tyre temperature only
Abstract
The invention discloses a tire temperature monitoring method, a tire temperature monitoring device and a storage medium, wherein the method comprises the following steps: acquiring initial tire pressure data of a tire to be detected; obtaining the environmental temperature of a vehicle, and taking the environmental temperature as initial tire temperature data of a tire to be detected; acquiring running tire pressure test data and running tire temperature test data of the tire through a bench test, and calculating according to the running tire pressure test data and the running tire temperature test data to obtain tire characteristic parameters; and acquiring running tire pressure data of the tire to be tested at preset time intervals, and calculating the running tire temperature data of the tire to be tested at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters. According to the embodiment of the invention, the temperature data of the running tire is obtained by calculation according to the relation between the temperature data of the running tire and the pressure data of the running tire and by combining the characteristic parameters of the tire, a temperature sensor is not required to be arranged in the tire, the cost of equipment is reduced, and the reliability of tire temperature monitoring can be effectively improved.
Description
Technical Field
The invention relates to the technical field of monitoring, in particular to a tire temperature monitoring method, a tire temperature monitoring device and a storage medium.
Background
At present, with the development of the market of Chinese passenger vehicles, a tire pressure monitoring system becomes a standard configuration of the passenger vehicles, the conventional tire temperature monitoring method generally adopts an over-built pressure sensor and a temperature sensor, simultaneously shows real-time tire pressure and tire temperature to customers, and reminds users when the tire temperature is abnormal so as to ensure driving safety. The existing tire temperature monitoring method is provided with a plurality of temperature sensors on a vehicle body, so that the cost for monitoring the tire temperature is high.
Disclosure of Invention
The invention provides a tire temperature monitoring method, a tire temperature monitoring device and a storage medium, which aim to solve the technical problem that the cost of tire temperature monitoring is higher because a plurality of temperature sensors are arranged on a vehicle body in the conventional tire temperature monitoring method.
One embodiment of the present invention provides a tire temperature monitoring method, including:
acquiring initial tire pressure data of a tire to be detected;
obtaining the environmental temperature of a vehicle, and taking the environmental temperature as initial tire temperature data of the tire to be detected;
obtaining running tire pressure test data and running tire temperature test data of a tire through a bench test, and calculating according to the running tire pressure test data and the running tire temperature test data to obtain tire characteristic parameters;
and acquiring running tire pressure data of the tire to be detected at preset time intervals, and calculating running tire temperature data of the tire to be detected at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters.
Further, after the running tire temperature data of the tire to be tested at different time points is obtained through calculation, the method further comprises the following steps:
and judging whether the running tire temperature data exceeds a preset tire temperature range, and if so, generating tire temperature alarm information.
Further, the acquiring running tire pressure data of the tire to be tested at a preset time interval, and calculating running tire temperature data of the tire to be tested at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters includes:
establishing a relational expression of the running tire pressure data and the running tire temperature data according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters:
P0/P1＝(T0+273/aT1+273)
wherein, P0 is initial tire pressure data, P1 is driving tire pressure data, a is tire characteristic parameters, T0 is initial tire temperature data, and T1 is driving tire temperature data;
and substituting the running tire pressure data into the relational expression to solve to obtain the form tire temperature data of the tire to be tested.
Further, the tire characteristic parameter has a value of 1.65.
One embodiment of the present invention provides a tire temperature monitoring apparatus including:
the initial tire pressure data acquisition module is used for acquiring initial tire pressure data of a tire to be detected;
the initial tire temperature data acquisition module is used for acquiring the environmental temperature of a vehicle and taking the environmental temperature as the initial tire temperature data of the tire to be detected;
the tire characteristic parameter acquisition module is used for acquiring running tire pressure test data and running tire temperature test data of a tire through a bench test and calculating to obtain tire characteristic parameters according to the running tire pressure test data and the running tire temperature test data;
and the running tire temperature data calculation module is used for acquiring running tire pressure data of the tire to be detected at preset time intervals, and calculating running tire temperature data of the tire to be detected at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters.
Further, the device also comprises a tire temperature alarm module, which is used for:
and judging whether the running tire temperature data exceeds a preset tire temperature range, and if so, generating tire temperature alarm information.
Further, the running tire temperature data calculation module is specifically configured to:
establishing a relational expression of the running tire pressure data and the running tire temperature data according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters:
P0/P1＝(T0+273/aT1+273)
wherein, P0 is initial tire pressure data, P1 is driving tire pressure data, a is tire characteristic parameter, T0 is initial tire temperature data, and T1 is driving tire temperature data;
substituting the running tire pressure data into the relational expression to solve to obtain the form tire temperature data of the tire to be tested
Further, the value of the tire characteristic parameter is 1.65.
One embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the tire temperature monitoring method as described above.
According to the embodiment of the invention, the running tire temperature data can be calculated according to the running tire temperature data and the initial station temperature tire pressure data by combining the tire characteristic parameters according to the relation between the running tire temperature data and the running tire pressure data, a temperature sensor is not required to be arranged in the tire, the embodiment of the invention is not influenced by the temperature of a running road surface, the equipment cost is reduced, and the reliability of tire temperature monitoring can be effectively improved.
Drawings
FIG. 1 is a schematic flow chart of a method for monitoring tire temperature according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a tire temperature monitoring apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, an embodiment of the present invention provides a tire temperature monitoring method, including:
s1, acquiring initial tire pressure data of the tire to be tested;
in the embodiment of the present invention, the initial tire pressure data refers to a cold tire pressure, that is, a tire pressure when the vehicle is stationary, and the unit: KPa, can be acquired by setting a pressure sensor. For example, tire pressure before starting the vehicle in the morning. When the vehicle starts, the air in the tire is heated to cause the tire pressure to rise, the running tire pressure is higher than the initial tire pressure, and the heat source of the air heated in the tire mainly has 3 places: 1. the friction between the tire and the ground generates heat; 2. the heat generated by the brake of the brake disc is transmitted into the tire through the front shaft and the wheel; 3. ambient temperature to the tire; the heat generated in the three aspects raises the temperature of the tire and raises the tire pressure.
S2, acquiring the environment temperature of the vehicle, and taking the environment temperature as initial tire temperature data of the tire to be measured;
in the embodiment of the invention, the ambient temperature of the vehicle can be used as the initial tire temperature data of the tire, and the ambient temperature of the vehicle can be acquired by an external temperature sensor.
S3, acquiring running tire pressure test data and running tire temperature test data of the tire through a bench test, and calculating according to the running tire pressure test data and the running tire temperature test data to obtain tire characteristic parameters;
in the embodiment of the present invention, the running tire pressure test data and the running tire temperature test data of the tire can be obtained through the bench test, and the relationship between the running tire pressure data and the running tire temperature data can be obtained by combining the initial tire pressure data and the initial tire temperature data, please refer to table 1, which is an example of 195/70R15 for the embodiment of the present invention, and an obtained relationship table of the running tire pressure and the running tire temperature is obtained.
Table 1:
and S4, acquiring running tire pressure data of the tire to be tested at preset time intervals, and calculating the running tire temperature data of the tire to be tested at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters.
In the embodiment of the invention, a relational expression of tire pressure data and temperature data of a tire is established:
P0/P1＝(T0+273/aT1+273)
p0 is the initial tire pressure data, or cold tire pressure; unit: KPa; p1 is tire pressure data, or hot tire pressure; unit: KPa; a is a tire characteristic parameter; the constant is obtained through the statistics of a bench test; t0 is initial tire temperature data, or cold tire temperature; unit: DEG C; t1 is the temperature data of the driving tire, or the temperature of the hot tire; unit: DEG C.
After the initial tire pressure data, the running tire pressure data, the initial tire temperature data and the tire characteristic parameters are determined, the running tire pressure temperature data can be accurately calculated according to the relational expression, a temperature sensor does not need to be arranged in the tire, and therefore the equipment deployment cost can be effectively reduced.
In one embodiment, after calculating the running tire temperature data of the tire under test at different time points, the method further comprises:
and judging whether the running tire temperature data exceeds a preset tire temperature range, and if so, generating tire temperature alarm information.
In one embodiment, acquiring running tire pressure data of a tire to be tested at preset time intervals, and calculating running tire temperature data of the tire to be tested at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters, includes:
establishing a relational expression of the running tire pressure data and the running tire temperature data according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters:
P0/P1＝(T0+273/aT1+273)
wherein, P0 is initial tire pressure data, P1 is driving tire pressure data, a is tire characteristic parameter, T0 is initial tire temperature data, and T1 is driving tire temperature data;
and substituting the running tire pressure data into the relational expression to solve to obtain the running tire temperature data of the tire to be tested. In one embodiment, the tire characteristic parameter has a value of 1.65.
Please refer to table 2, which is a table of actual relationship between tire pressure and tire temperature provided in the embodiment of the present invention.
TABLE 2 actual relationship table of tire pressure and tire temperature
In the embodiment of the invention, P0 and P1 are measurable tire pressures, T0 is measurable ambient temperature, and the a value of 195/70R15 is 1.65.
T1＝[(P1*T0)P0-273]/a；
T2＝[(P2*T1)P1-273]/a；
T3＝[(P3*T2)P2-273]/a；
……；
Tn＝[(Pn*Tn-1)Pn-1-273]/a；
The tire temperature data of the tire can be accurately calculated according to the formula.
Illustratively, since the accuracy of the air pressure monitoring is ± 7kpa, the interval of the air pressure monitoring is 5kpa, and the air pressure monitoring can be adjusted to 1kpa, 7kpa, 10kpa, or the like according to actual conditions.
Illustratively, when the user starts driving at vehicle condition S5, the initial tire pressure of the vehicle is 244kpa, and the ambient temperature is 18 ℃; when the vehicle is started for a period of time, the running tire pressure reaches 284kpa, the temperature reaches 48 ℃, and the environmental temperature is 30 ℃; in the process, the tire starts to leak gas because of being punctured, the tire pressure starts to decrease, the tire pressure monitoring sensor accurately monitors the change of the tire pressure, when the tire pressure decreases to 254kpa, the tire temperature of the tire is converted into 26 ℃ according to the embodiment of the invention, the temperature is far lower than the ambient temperature by 30 ℃, the data abnormality of the tire temperature of the tire at the moment can be judged, and at the moment, the vehicle intelligent system sends alarm information to a user side to remind the user to pay attention to the tire pressure and overhaul as soon as possible.
The tire temperature obtained by the embodiment of the invention has the precision error of +/-2 ℃ which is equivalent to the tire pressure monitoring temperature precision with the temperature sensor, and can completely replace the temperature sensor in function, so that the tire temperature data can be accurately monitored without arranging the temperature sensor in the tire, the cost can be effectively reduced, and the reliability of the tire temperature data monitoring of the tire can be ensured.
The embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, the running tire temperature data can be calculated according to the running tire temperature data and the initial station temperature tire pressure data by combining the tire characteristic parameters according to the relation between the running tire temperature data and the running tire pressure data, a temperature sensor is not required to be arranged in the tire, the embodiment of the invention is not influenced by the temperature of a running road surface, the equipment cost is reduced, and the reliability of tire temperature monitoring can be effectively improved.
Referring to fig. 2, based on the same inventive concept as the above embodiment, an embodiment of the present invention provides a tire temperature monitoring apparatus, including:
an initial tire pressure data obtaining module 10, configured to obtain initial tire pressure data of a tire to be tested;
the initial tire temperature data acquisition module 20 is configured to acquire an ambient temperature of the vehicle, and use the ambient temperature as initial tire temperature data of the tire to be measured;
the tire characteristic parameter acquiring module 30 is configured to acquire running tire pressure test data and running tire temperature test data of the tire through a bench test, and calculate a tire characteristic parameter according to the running tire pressure test data and the running tire temperature test data;
and the running tire temperature data calculation module 40 is configured to obtain running tire pressure data of the tire to be tested at preset time intervals, and calculate running tire temperature data of the tire to be tested at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters.
In one embodiment, the apparatus further comprises a tire temperature warning module for:
and judging whether the running tire temperature data exceeds a preset tire temperature range, and if so, generating tire temperature alarm information.
In one embodiment, the running tire temperature data calculation module 40 is specifically configured to:
establishing a relational expression of the running tire pressure data and the running tire temperature data according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters:
P0/P1＝(T0+273/aT1+273)
wherein, P0 is initial tire pressure data, P1 is driving tire pressure data, a is tire characteristic parameter, T0 is initial tire temperature data, and T1 is driving tire temperature data;
and substituting the running tire pressure data into the relational expression to solve to obtain the form tire temperature data of the tire to be tested.
In one embodiment, the tire characteristic parameter has a value of 1.65.
One embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the tire temperature monitoring method as described above.
The foregoing is a preferred embodiment of the present invention, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present invention, and these modifications and embellishments are also regarded as the scope of the present invention.
Claims (9)
1. A method of tire temperature monitoring, comprising:
acquiring initial tire pressure data of a tire to be detected;
obtaining the environmental temperature of a vehicle, and taking the environmental temperature as initial tire temperature data of the tire to be detected;
obtaining running tire pressure test data and running tire temperature test data of a tire through a bench test, and calculating according to the running tire pressure test data and the running tire temperature test data to obtain tire characteristic parameters;
acquiring running tire pressure data of the tire to be tested at preset time intervals, and calculating the running tire temperature data of the tire to be tested at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters.
2. The tire temperature monitoring method according to claim 1, further comprising, after calculating traveling tire temperature data of the tire under test at different time points, the steps of:
and judging whether the running tire temperature data exceeds a preset tire temperature range, and if so, generating tire temperature alarm information.
3. The method for monitoring tire temperature according to claim 1, wherein the step of obtaining the running tire pressure data of the tire to be tested at preset time intervals and calculating the running tire temperature data of the tire to be tested at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters comprises:
establishing a relational expression of the running tire pressure data and the running tire temperature data according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters:
P0/P1＝(T0+273/aT1+273)
wherein, P0 is initial tire pressure data, P1 is driving tire pressure data, a is tire characteristic parameters, T0 is initial tire temperature data, and T1 is driving tire temperature data;
and substituting the running tire pressure data into the relational expression to solve to obtain the form tire temperature data of the tire to be tested.
4. The method of tire temperature monitoring of claim 1, wherein said tire characteristic parameter has a value of 1.65.
5. A tire temperature monitoring device, comprising:
the initial tire pressure data acquisition module is used for acquiring initial tire pressure data of a tire to be detected;
the initial tire temperature data acquisition module is used for acquiring the environmental temperature of a vehicle and taking the environmental temperature as the initial tire temperature data of the tire to be detected;
the tire characteristic parameter acquisition module is used for acquiring running tire pressure test data and running tire temperature test data of a tire through a bench test and calculating to obtain tire characteristic parameters according to the running tire pressure test data and the running tire temperature test data;
and the running tire temperature data calculation module is used for acquiring running tire pressure data of the tire to be detected at preset time intervals, and calculating running tire temperature data of the tire to be detected at different time points according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters.
6. The tire temperature monitoring apparatus of claim 5, further comprising a tire temperature warning module for:
and judging whether the running tire temperature data exceeds a preset tire temperature range, and if so, generating tire temperature alarm information.
7. The tire temperature monitoring device of claim 5, wherein the running tire temperature data calculation module is specifically configured to:
establishing a relational expression of the running tire pressure data and the running tire temperature data according to the initial tire pressure data, the initial tire temperature data and the tire characteristic parameters:
P0/P1＝(T0+273/aT1+273)
wherein, P0 is initial tire pressure data, P1 is driving tire pressure data, a is tire characteristic parameters, T0 is initial tire temperature data, and T1 is driving tire temperature data;
and substituting the running tire pressure data into the relational expression to solve to obtain the form tire temperature data of the tire to be tested.
8. The tire temperature monitoring device of claim 5, wherein said tire characteristic parameter has a value of 1.65.
9. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the tire temperature monitoring method according to any one of claims 1 to 4.
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